Merge pull request #14630 from thingsboard/bugfix/alarm-start-ts

Fixed generation of startTs for new alarms in AlarmCalculatedFieldState

application/src/main/java/org/thingsboard/server/service/cf/ctx/state/BaseCalculatedFieldState.java

@@ -48,7 +48,6 @@ public abstract class BaseCalculatedFieldState implements CalculatedFieldState,
 
     protected Map<String, ArgumentEntry> arguments = new HashMap<>();
     protected boolean sizeExceedsLimit;
-    protected long latestTimestamp = DEFAULT_LAST_UPDATE_TS;
     protected ReadinessStatus readinessStatus;
 
     @Setter
@@ -121,7 +120,6 @@ public abstract class BaseCalculatedFieldState implements CalculatedFieldState,
         requiredArguments = null;
         arguments.clear();
         sizeExceedsLimit = false;
-        latestTimestamp = DEFAULT_LAST_UPDATE_TS;
     }
 
     @Override

application/src/main/java/org/thingsboard/server/service/cf/ctx/state/alarm/AlarmCalculatedFieldState.java

@@ -356,7 +356,7 @@ public class AlarmCalculatedFieldState extends BaseCalculatedFieldState {
             newAlarm.setAcknowledged(false);
             newAlarm.setCleared(false);
             newAlarm.setSeverity(severity);
-            long startTs = latestTimestamp;
+            long startTs = getLatestTimestamp();
             long currentTime = System.currentTimeMillis();
             if (startTs <= 0L || startTs > currentTime) {
                 startTs = currentTime;